Sugar-cane and like mill returner-bar.



A.- McA. LANG. SUGAR CANE AND LIKE MILLv RETURNER BAR.

RU 1 9 1 )T. .5H 2% BL 3T J H d m H nu 1T0 a P APPLICATION FILED JAN-16, 1915- lllllhl THE COLUMBIA PLAFOGRAPH CO" WASHINGTON, D- l A. McA. LANG.

.SUGAR CANE AND LIK E MILL RETURNER BAR.

' APPLICATION FILED JAN. 16, 1915.

1,169,56 Patented Jan.25, 1916.

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ARCI-IIBALD lVIoA. LANG, OFLIVERPOOL, ENGLAND.

SUGAR-CANE AND LIKE MILL RETURNER-BAR.

Application filed January 16, 1915.

To all 207mm 2'25 may concern:

Be it known that I, ARCHIBALD MCAR- THUR LANG, a subject of the King of England, residing at 1.7 York street, Liverpool, in the county of Lancaster, England, have invented new and useful Improvements in or Connected with Sugar-Cane and like Mill Returner Bars, of which the following is a specification.

T his invention has reference to three roller sugar cane and like mills, and especially to the returner bar, and parts connected with it, lying between the two lower rollers, nd serving to lead ordirect the cane delivered from the upperand intake lower roller, anddelivering it to the nip between the upper and the second and, discharge roller.

This invention will be described with reference to the accompanying drawings which illustrate it.

In the drawings Figure ,l is. a cross section through a'mill provided with the im provements; and Fig. 2 is a plan of same.

Referring to the drawings, a are the main frames or headstocks of the mill; and b, c and d, the three rollers. e is the returner bar supporting beam, and e the returner bar proper, on the upper edge of same; and f are the stools formed on or connected with the lower portion of the frames or headstocks a, and carrying movable supporting bearing parts 9 by which the beam 6 and supporting parts, are adjustable at their lower portions.

The beam 6, as is usual in mills of this kind, and the returner bar 6 extend across the mill from side to side, inside the main frames or headstocks a,.and as in some kinds of known mills, the beams and their supporting means are adjustable, so that. the returner bar 6 can be adjusted bodily in relation to the rollers 0 and b at the intake side, and its leading edge brought into position in relation to the surface of the intake lower roller, and also generally adjusted as required. In some cases, in mills as heretofore constructed, this adjustment has been effected by ordinary movable cotters or wedges, through which the adjustment of the returner bar in a direction at right angles to the axes of the rollers can be accomplished; while in other cases, it hasbeen effected by screw-bolt gear, or thelike; and in some cases moreover, the returner bar beam is capable of being rocked about its Specification of Letters Patent.

Patented Jan. 25, 1916.

Serial No. 2,682.

lower edge, more or less; and this invention is directed to mills having returner bars and beams of the latter character.

In the machine shown the beam 6 has at each end below, a species of gudgeon or cyl ndrical base it, which is preferably fixed to 1t bv a staple-shaped clamp fastening h; and this gudgeon or bearing piece on each end rests in a corresponding seat on the movable bearing block 9 which rests on the stool f below, formed in one with the head stock or frame a.

The bearing blocks 9 are capable of adjustment longitudinally on the stools by means of horizontal wedges 2', fitted in between the ends of the supporting blocks or bearings g and upwardly projecting ends or thrust portions 7 of the stools f, and the inclined surfaces of the wedges 2' act on inclined surfaces of the blocks g. And these wedges 2' are actuated by bolts and nuts 70 I9 and j j which are parallel with the general plane of the returner bar, the Tshaped heads ofwhich are sunk into sockets in the wedges 2'. The bolts and nuts j, j connect together the two sets of wedges 2' on each side of the central vertical plane of the machine, wh'ile the bolts and nuts j, 7' and wedges 2' are connected to the frames a by the bolts and nuts is, A The ends of the bolts 3' are oppositely threaded, and the opposite ends of the nuts 9' are correspondingly oppositely threaded; so that the wedges 2' can be adjusted in relation to each other as desired, by turning the nuts j in one direction or the other.

By drawing up the outside nuts 70 on one side of the machine, and slacking those on the other, both bearing blocks 9 can be moved longitudinally, simultaneously, and the same degree. The bolts 70 on each side of the vertical plane of the machine will be moved in the one direction by their nuts 70 in adjusting the returner bar. The blocks 9 may thus be firmly held from both ends; and when adjusted to the position required, they are clamped down in position by the fixing bolts or studs Z. The apertures in the. frames a through which the bolts 70 pass, are vertical slots m, so that the "'l heads to be sunk into the wedges 2', can he passed from the outside of the frame through same, and then turned and dropped down into position in the wedges 2'. The upper part of the rocking beam 6 is held and adjusted by means of a bolt 0 at each by screwing up the nuts on the ends of the rods 0, the front edges of the returner bar 6 can be adjusted up to the surface of the intake lower roller 0 and'held thereto.

What is claimed is 1. In a sugar cane or like mill, the combination of side frames or headstocks; an adjustable returner bar; stools on the inside of the said frames or headstocks; returner bar bearing blocks adapted to be adjusted parallel with the side frames or headstocks,

having inclined ends and resting on the stools; wedge shaped adjusting means at the ends of the bearing blocks, and adapted to'act on same; and bolts connecting the said wedges, and disposed parallel with the general plane of the returner bar, substantially as described. M r v 2. Ina sugar cane or like mill, the combination of the side frames or headstocks, stools formed on the inside of same; movable bearing blocks resting onthe said stools; returner bars beam carried at each end 'on the said bearing blocks; wedges; screw bolts and nuts connected with the wedges and adapted to move same in either direction; substantially as described.

3. In a sugar cane mill, the combination with the returner bar, of a. beam for supporting the returner bar, means pivotally engaging the beam for supporting the beam, means for moving the supporting means in a direction at right angles tothe longitudinal axis of the returner bar, and means for rocking the returner bar and beam on its supporting means.

' l. In a sugar cane mill, the combination with the returner bar, of a beam for supporting the returner bar, bearing blocks having pivotal engagement with the beam at each end thereof, and adapted to support the same, means for moving the bearing blocks simultaneously in a direction at right angles to the longitudinal axis of the returner bar, and meansv for rocking the returner bar and beam on the bearing blocks.

5. In a sugar cane mill, the combination with the returner bar, of a supporting beam therefor, bearing blocks for supporting the beam, pedestals having a smooth upper surface upon which the bearing blocks are adapted to be supported in sliding engagement, means forsliding the bearing blocks upon the pedestals in a direction at right angles to the longitudinal axis of the returner bar, and means for rocking the beam on the bearing blocks.

6. In a sugar cane mill,.the combination with the returner bar, of a supporting beam therefor, the ends of the beam being provided'at its lower end with recesses, trunnions held in said recesses, bearing blocks having recesses to receive the trunnions, means for moving the bearing blocks sidewise, and means for rocking the beam on the blocks.

7. In a sugar cane mill, the combination with the returner bar, of a supporting beam therefor, and bearing blocks for supporting the beam, the sides of the bearing blocks facing transversely of the mill being inclined with relation to the longitudinal axis of the returner bar, pedestals for supporting the bearing blocks, upstanding abutments at each end thereof, wedges which slide in spaces formed between the inclined faces of the bearing blocks and the abutments, means for sliding the wedges in a direction parallel to the returner bar where by the bearing blocks will be shifted, and means for rocking the beam on its blocks. 8. In a sugar cane mill, the combination with the returner bar, of a beam for supporting the bar, bearing blocks for supporting the beam, oppositely disposed side faces of the blocks'being inclined, pedestals for supporting the blocks, upstanding abutment-s on the pedestals, wedges which bear with one of their sides against the abutments and with their other side against the inclined faces of the bearing blocks, said wedges having recesses in their upper faces to receive the heads of bolts, a set of bolts having their heads seated in the said recesses, their threaded portions extending outwardly and passing through the frame members of the mill, nuts on the bolts, a second set of bolts having their heads seated in recesses in the wedges and their threaded portions extending inwardly, turn buckles connecting the threaded ends of oppositely disposed bolts, and means for rocking the returner bars and beam on the blocks.

9. A returner bar for sugar cane mills or the like including a supporting beam for the returner bar, the ends of the beam being provided at its lower edge with recesses, trunnions' held in said recesses, bearing blocks having recesses which receive the trunnions and support the beam, the sides of the bearing blocks facing transversely of the mill being inclined with respect to the longitudinal axis of the returner bar, supporting pedestals for the bearing blocks, said pedestals having a flat upper bearing surface whereby the bearing blocks may be shifted thereon in a direction transversely of the returner bar, slots in the pedestals to receive bolts which pass through openings in the bearing blocks whereby the said blocks may be held in adjusted position, upstanding abutments at each end of the supports, wedges which bear with one of their sides against the abutments and with the other side against the inclined faces of the bearing blocks, said Wedges having recesses in their upper faces to receive the heads of bolts, a set of bolts having their heads seated in the said recess, their threaded portions extending outwardly and Which are adapted to be anchored in the frame of the sugar mill, nuts on the bolts, a second set of bolts having their heads seated in the wedges and their threaded portion extending inwardly, turn buckets connecting the threaded ends of oppositely disposed bolts,

a threaded bolt pivoted at one end to the returner beam, and mounted at the other end in a swivel which is adapted to be pivoted to the frame of the sugar mill.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing witnesses.

ARCHIBALD MoA. LANG.

Witnesses:

SOMERVILLE GooDALL, 'FRANKE F LEETWOOD.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, 1). C. 

